Which of the following statements regarding photosynthesis and cellular respiration is true?
a) photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria.
b) photosynthesis occurs in mitochondria, and cellular respiration occurs in chloroplasts.
c) photosynthesis occurs in mitochondria and in chloroplasts.
d) cellular respiration occurs in mitochondria and in chloroplasts.
e) neither cellular respiration nor photosynthesis occurs in either mitochondria or chloroplasts.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.